The legal directory + citation program that confirms NAP, feeds the GBP prominence signal, and produces directory-driven consults. Priority order, fields.
First, it confirms to Google that the firm is who and where it claims to be (a key map-pack prominence input). Second, the bigger directories themselves rank for high-intent legal queries, so the directory listing is a discovery channel in its own right. A complete citation program builds both.

Every citation — a listing of the firm's name, address, and phone on a third-party site — does two jobs.
Not all citations carry equal weight. The priority order for a U.S. law firm:
historically the highest-traffic legal directory, with attorney profiles that rank in their own right.
Thomson Reuters property; carries authority and a paid listing model.
free profile, indexed quickly, often appears in branded searches.
peer-rating signal, especially relevant for estate planning and complex civil work.
invitation-based directory; a Super Lawyers profile is a meaningful trust signal.
Martindale property, additional discovery channel.
required for ABA-compliance, useful for citation parity.
county or city bar.
peer-nominated; the listing itself is rare and high-trust when achieved.
Beyond the legal directories, the standard local-business citation set still matters: Yelp, Yellow Pages, BBB, Chamber of Commerce, Manta, Foursquare, MapQuest, Bing Places, Apple Maps. These don't produce the discovery traffic the legal directories do, but they confirm NAP consistency to Google and feed the prominence signal.
The single mistake that wastes a citation program is field-by-field inconsistency. The firm name on every listing must match the GBP exactly — same spelling, same suffix (LLC vs. LLP), same use of ampersands, same comma placement. The address must use the same suite-number formatting (Suite 101, not Ste. 101 on some and #101 on others). The phone number must be the same, in the same format, including or excluding parentheses consistently.
The full set of formatting rules is on the Law Firm NAP Consistency page, which is the page to read after this one.
Before a dollar is spent, you see exactly where your site leaks equity and which structural fixes compound.
A citation audit against the priority list — what exists, what's missing, what's inconsistent.
A field-by-field cleanup of the existing inconsistencies (this is usually the highest-leverage work).
New-listing creation against the gaps.
Quarterly citation re-audits to catch decay (firms move offices, change phones, and forget to update directories).
A monthly report tracking citation count, consistency rate, and discovery-driven traffic from directory referrals.
See the same 30-point audit we ran on ourselves. Before a dollar is spent, you see exactly where your site leaks equity and which structural fixes compound. No vanity metrics, no obligation.